Issued Patents 2018
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10132424 | Variable flow valve having metered flow orifice | Brian M. Graichen, David E. Fletcher, Keith Hampton | 2018-11-20 |
| 10107240 | Check valves and Venturi devices having the same | David E. Fletcher, Brian M. Graichen, Matthew C. Gilmer, Andrew Niedert, Keith Hampton | 2018-10-23 |
| 10100720 | Crankcase ventilating evacuator | David E. Fletcher, Brian M. Graichen, Keith Hampton | 2018-10-16 |
| 10041313 | Method and system for extending reach in deviated wellbores using selected injection speed | Nathan Wicks, Pedro Reis, Tianxiang Su | 2018-08-07 |
| 10030456 | Method and system for extending reach in deviated wellbores using selected vibration frequency | Nathan Wicks, Jahir Pabon, Pedro Reis | 2018-07-24 |
| 10024339 | Vacuum creation system having an ejector, pneumatic control valve and optionally an aspirator | David E. Fletcher, Brian M. Graichen, Rex Bravo, Matthew C. Gilmer, Keith Hampton +1 more | 2018-07-17 |
| D821546 | Actuated valve | David E. Fletcher, Brian M. Graichen, Rex Bravo, Keith Hampton, Matthew C. Gilmer +2 more | 2018-06-26 |
| D821302 | Venturi device | David E. Fletcher, Brian M. Graichen, Rex Bravo, Keith Hampton, Matthew C. Gilmer +2 more | 2018-06-26 |
| 9915370 | Magnetically actuated shut-off valve | David E. Fletcher, Brian M. Graichen, Keith Hampton | 2018-03-13 |
| 9915362 | Fluidic diode check valve | Keith Hampton, David E. Fletcher, Brian M. Graichen, Matthew C. Gilmer, Andrew Niedert | 2018-03-13 |
| 9879699 | Venturi devices with dual Venturi flow paths | David E. Fletcher, Brian M. Graichen, Keith Hampton | 2018-01-30 |